RPM's Rust-Oleum Subsidiary Acquires UK Fiberglass Safety Products Supplier

MEDINA, Ohio, December 14 - RPM International Inc. (NYSE: RPM) today announced that its subsidiary,
Rust-Oleum Corporation, has acquired FibreGrid Limited, a supplier of
fiberglass anti-slip safety products based in the United Kingdom. Terms of
the transaction, which is expected to be accretive to earnings within one
year, were not disclosed.

FibreGrid, which has annual sales of approximately US$3.5 million,
manufactures innovative glass reinforced plastic safety products for
anti-slip applications such as stair tread covers and noses, riser plates,
ladder rungs, decking strips, flooring and matting. Among its clients are
small businesses, warehouses, schools and municipalities. Most of FibreGrid's
orders involve custom cutting and colors, 24-hour turnaround and small
quantities.

"FibreGrid will become a business unit within our Watco UK Limited
business, which is part of Rust-Oleum. Watco has been selling FibreGrid
products for many years, has a similar business model and can leverage its
marketing expertise to support FibreGrid's growth. FibreGrid's founder, Rob
Cousin, will remain involved in the business and his son, Scott, will
continue running day-to-day operations," stated Frank C. Sullivan, RPM
chairman and chief executive officer.

About RPM

RPM International Inc., a holding company, owns subsidiaries that are
world leaders in specialty coatings, sealants, building materials and related
services serving both industrial and consumer markets. RPM's industrial
products include roofing systems, sealants, corrosion control coatings,
flooring coatings and specialty chemicals. Industrial brands include
Stonhard, Tremco, illbruck, Carboline, Day-Glo, Euco and Dryvit. RPM's
consumer products are used by professionals and do-it-yourselfers for home
maintenance and improvement, boat repair and maintenance, and by hobbyists.
Consumer brands include Zinsser, Rust-Oleum, DAP, Varathane and Testors.
Additional details are available at www.rpminc.com.

For more information, contact P. Kelly Tompkins, executive vice president
and chief financial officer, at +1-330-273-5090 or ktompkins@rpminc.com.

This press release contains "forward-looking statements" relating to our
business. These forward-looking statements, or other statements made by us,
are made based on our expectations and beliefs concerning future events
impacting us, and are subject to uncertainties and factors (including those
specified below) which are difficult to predict and, in many instances, are
beyond our control. As a result, our actual results could differ materially
from those expressed in or implied by any such forward-looking statements.
These uncertainties and factors include (a) global markets and general
economic conditions, including uncertainties surrounding the volatility in
financial markets, the availability of capital and the effect of changes in
interest rates, and the viability of banks and other financial institutions;
(b) the prices, supply and capacity of raw materials, including assorted
pigments, resins, solvents and other natural gas- and oil-based materials;
packaging, including plastic containers; and transportation services,
including fuel surcharges; (c) continued growth in demand for our products;
(d) legal, environmental and litigation risks inherent in our construction
and chemicals businesses and risks related to the adequacy of our insurance
coverage for such matters; (e) the effect of changes in interest rates; (f)
the effect of fluctuations in currency exchange rates upon our foreign
operations; (g) the effect of non-currency risks of investing in and
conducting operations in foreign countries, including those relating to
domestic and international political, social, economic and regulatory
factors; (h) risks and uncertainties associated with our ongoing acquisition
and divestiture activities; (i) risks related to the adequacy of our
contingent liability reserves, including for asbestos-related claims and
warranty obligations; and (j) other risks detailed in our filings with the
Securities and Exchange Commission, including the risk factors set forth in
our Annual Report on Form 10-K for the year ended May 31, 2009, as the same
may be updated from time to time. We do not undertake any obligation to
publicly update or revise any forward-looking statements to reflect future
events, information or circumstances that arise after the date of this
release.

P. Kelly Tompkins, executive vice president and chief financial officer of RPM International Inc., +1-330-273-5090 or ktompkins at rpminc.com